How lifestyle and air pollution patterns affect mortality

By Dr. Priyom Bose, Ph.D.Reviewed by Benedette Cuffari, M.Sc.Jun 30 2024 A recent BMC Public Health journal study investigates the effects of air pollution and lifestyle factors on mortality.

Previous studies have highlighted that physical inactivity, poor diet, heavy alcohol consumption, and smoking contribute to 60% of premature mortality. These unhealthy lifestyle factors also increase the risk of coronary heart disease, cancer, hypertension, and diabetes; therefore, maintaining a healthy lifestyle is essential for improving the overall quality of life.

About the study The current population-based prospective cohort study was conducted to assess the potential association between various lifestyle factors, air pollutants including particulate matter , nitrogen oxides , and all-cause mortality risk. Study findings Healthy lifestyles were associated with a reduced risk of all-cause mortality, whereas higher exposure to NOx, PM2.5, and PM10 was positively correlated with an increased risk of all-cause mortality. The strength of the association between unhealthy lifestyles and mortality risk differed across air pollution subgroups, with a stronger association observed in subgroups with lower air pollution levels.

PM10 primarily contains natural elements instead of heavy metals and is relatively less toxic than PM2.5. However, the combined exposure to multiple air pollutants was associated with a greater impact than individual exposure.

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